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The subscript in a chemical formula indicates the
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
Matter can undergo physical and chemical changes. A physical change is a change of matter from one form to another without a change in the identify of the substance. Which process is an example of a physical change?
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
Matter can undergo both chemical and physical changes. What indicates that the change was definitely chemical?
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
How many atoms of Carbon are present in 3C2H12N6?
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
How many atoms of Hydrogen are present in 5H20?
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
What is the conservation of matter?
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
The Law of Conservation of Mass helps us understand that if 12 g Hydrogen and 18 grams Oxygen react then the product will have a mass of
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
Which shows one example of a physical change and one example of a chemical change?
freezing water and burning coal
matter is neither created or destroyed
A precipitate formed
30g
ice melting
10
number of atoms
6
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